TWI739711B - Lifting control module and roller blind lifting device - Google Patents

Abstract

A lifting control module includes a bearing unit, a rotating shaft wheel arranged on the bearing unit, a backstop unit and a driving unit. The rotating shaft wheel is used for connecting the shaft and is formed with a first ratchet part and a second ratchet part. The anti-return unit includes a anti-return wheel having a third ratchet part matched with the first ratchet part and a resetting member. The driving unit includes a driving wheel, a linkage member, a pushing member, a blocking member, a pulling rope and a retractable elastic member. The driving wheel has a fourth ratchet tooth part that cooperates with the second ratchet tooth part. The pull rope is rolled by the driving wheel and passes through the pushing member and the blocking member so that the end can be pulled by the user. The anti-return wheel meshes with the rotating shaft wheel so that the rotating shaft wheel rotates in one direction. By controlling the pull rope to place the anti-return wheel at the release position, the curtain can be lowered due to its own weight, and the pulling rope is controlled so that the pusher pushes the driving wheel to mesh with the rotating shaft wheel. Rotation can raise the curtain.

Description

Lifting control module and roller blind lifting device

The present invention relates to a lifting control module, in particular to a lifting control module and a roller blind lifting device that operate the curtain lifting with a single pull rope.

The existing roller blinds have many styles, including general roller blinds, Roman blinds, zebra blinds, jalousie curtains and so on. Roll-up curtains are usually controlled by a controller linked by a looped rope to control the ups and downs of the curtain. The hanging length of some controllers is too long, and it is easy to be entangled with nearby objects, causing inconvenience in use, and in an environment with young children, it is also easy to entangle young children and cause danger.

Therefore, one of the objectives of the present invention is to provide a lifting control module that can solve the aforementioned problems.

Therefore, in some embodiments, the lifting control module of the present invention is used to connect a shaft to control the rotation of the shaft. The lifting control module includes: a carrying unit, a rotating shaft wheel, a stopping unit, and a drive unit. The bearing unit includes a base wall and a fixed shaft fixed to the base wall, and the fixed shaft has a shaft portion. The rotating shaft wheel is rotatably sleeved on the shaft portion around the shaft portion, and includes a main body for connecting and fixing the shaft rod and a side connected to the main body close to the base wall and expanding radially outward from the main body The convex ring body, the main body has an accommodating groove surrounding the shaft portion and a wall surface defining the accommodating groove and facing the base wall is formed with a first ratchet portion surrounding the shaft portion, and the convex ring body faces The surface of the base wall is formed with a second ratchet portion distributed around the accommodating groove. The anti-return unit includes a set of anti-return wheels that are set on the shaft portion and accommodated in the accommodating groove and a restoring piece. The anti-return wheel has a wheel body and a wheel body formed on the wheel body facing the first ratchet The surface of the third ratchet tooth part matched with the first ratchet tooth part, the anti-return wheel can be opposite to the shaft part at a stop that enables the third ratchet tooth part to mesh with the first ratchet tooth part Position and a release position that separates the third ratchet part from the first ratchet part, the reset member returns the anti-return wheel to the stop position, and the stop wheel is located at the stop position When, the shaft wheel can only rotate forward in one direction. The driving unit includes a driving wheel, a linkage member, a pushing member, a blocking member, a pull rope, and a winding elastic member. The driving wheel is rotatably sleeved on the shaft and has a The fourth ratchet part matched with the second ratchet part can move along the shaft between a driving position and a normal position. In the driving position, the fourth ratchet part and the second ratchet The teeth are meshed. In the normal position, the fourth ratchet is separated from the second ratchet. The linkage connects the driving wheel and the anti-return wheel to move the anti-return wheel to In the release position, the pushing member is disposed on the base wall and can move between an initial position and a pushing position. The pushing member does not interact with the driving wheel when the pushing member is in the initial position. In the pushing position, the driving wheel is pushed against the driving wheel so that the driving wheel is located at the driving position. The blocking member is arranged on the base wall and can move between a blocking position and an avoiding position. The blocking member is in the blocking position. Position, the pushing member is positioned at the initial position, when the blocking member is in the avoiding position, the pushing member can be moved to the pushing position, and one end of the pull rope is fixed to the driving wheel and surrounds the driving wheel After several turns, the rotating wheel passes through the pushing member and the blocking member so that the end can be pulled by the user, and the retracting elastic member provides a restoring force for the rotation of the driving wheel to automatically retract the pull rope.

In some embodiments, the fixed shaft further has a guide post piercing through the shaft in a radial direction, and the anti-return wheel further has a guide groove formed in the wheel body and matched with the guide post, When the anti-return wheel rotates, a cam action is formed to move between the anti-return position and the release position.

In some embodiments, the linkage member is a thread, and two ends of the linkage member are respectively fixed to the wheel body of the anti-return wheel and the driving wheel, and the middle part surrounds the shaft portion, and the pull rope is pulled When it reaches the bottom, the driving wheel is linked to the linkage to make the linkage to be tightened and linked to the backstop wheel to move to the release position.

In some embodiments, the base wall has a flat portion perpendicular to the shaft portion and a support portion protruding from the flat portion and located above the fixed shaft, and the pushing member is pivoted on the support portion and has a A pull-down portion located above the driving wheel and for the pull cord to pass through, and a pushing portion located on the side of the driving wheel opposite to the fourth ratchet portion to push the driving wheel, the pull-down portion is not When being acted on by the pulling rope, the pushing member is located at the initial position, and when the pull-down portion is pulled down by the pulling rope, the pushing member pivots downward to move the pushing member to the pushing position.

In some embodiments, the blocking member is pivoted on the flat plate portion, and has an upright pivoting portion, a blocking portion bent from the upper end of the pivoting portion and extending vertically, and a blocking portion bent from the lower end of the pivoting portion The pulling part is folded and extended to pass through the pulling rope, and the blocking part and the pulling part are vertically displaced and rotate in the opposite direction relative to the pivoting part.

In some embodiments, the pushing portion of the pushing member is stepped close to the side edge of the blocking portion, the pull cord is pulled obliquely outward so that the blocking member is located at the blocking position, and the pull cord is directly downward Pull to place the blocking member in the avoiding position.

In some embodiments, the pushing portion of the pushing member forms a recess in correspondence with the blocking portion, the pull cord is directly pulled downwards so that the blocking member is located at the blocking position, and the pull cord is inclined downward. Pull to place the blocking member in the avoiding position.

In some embodiments, the driving unit further includes an annular elastic member sandwiched between the rotating shaft wheel and the driving wheel to provide a restoring force for the driving wheel to return to the normal position.

Therefore, another object of the present invention is to provide a roller blind lifting device that can solve the aforementioned problems.

Therefore, in some embodiments, the roller blind lifting device of the present invention includes a shield, the aforementioned lifting control module, a rotating support module, and a shaft. The mask extends along a straight line and has a first end and a second end on opposite sides. The base wall of the bearing unit of the lifting control module is connected to the first end and the shaft part faces the second end. The rotation support module is connected to the second end. The shaft is used for winding a curtain, and its two ends are respectively connected with the lifting control module and the rotation support module, so as to be controlled by the lifting control module to rotate and lift the curtain.

In some embodiments, the shaft is in the shape of a hollow cylinder and is formed with an engaging portion recessed from its outer peripheral surface and protruding from its inner peripheral surface. The engaging portion extends linearly to both ends of the shaft and defines a A groove recessed from the outer peripheral surface of the shaft, the main body of the shaft wheel is sleeved on one end of the shaft and has a first slot for engaging and clamping the engaging portion. The rotation support module includes a The mounting wall connected to the shield, a supporting shaft fixed to the mounting wall and extending toward the lifting control module, and a rotating seat rotatably sleeved on the supporting shaft, the rotating seat having a shaft for the shaft The connecting portion is sleeved on the other end of the rod, and the connecting portion has a second slot for engaging and clamping the engaging portion.

In some embodiments, the rotation support module further includes a reduction sleeve and a crimping member, and the rotation seat further has a diameter smaller than the connecting portion, extending from the connecting portion toward the lifting control module, and surrounding at intervals The extension part of the support shaft, the support shaft has a shaft body and a friction ring, the shaft body has a fixed end connected to the mounting wall and a free end opposite to the fixed end and extending out of the rotating seat Part, the friction ring is embedded in the free end, the reduction sleeve has a cylindrical part set on the free end and a plurality of elastic pieces extending from the cylindrical part towards the rotating seat, the The elastic sheet is distributed around the shaft body and the end is located between the extension part and the shaft body, the crimping piece is linear and is wound on the reduction sleeve, and both ends are respectively fixed to the rotating seat and the barrel part, When the shaft is reversed, the reduction sleeve is subjected to the resistance of the friction ring compared with that of the rotating seat, which causes the shrinking member to shrink and compress the elastic sheets to clamp the shaft and reduce the speed of the rotating seat. .

The present invention has at least the following effects: when the drawstring is not pulled by the user, it remains rolled on the driving wheel, which can avoid the danger of entanglement of young children and the inconvenience of entanglement of nearby objects. Moreover, the user only needs to pull the pull rope to make the curtain rise and fall, and the operation is simple and convenient.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.

Referring to FIGS. 1 to 3, a first embodiment of the roller blind lifting device 100 of the present invention includes a mask 1, a lifting control module 2, a rotating support module 3 and a shaft 4.

The mask 1 extends along a straight line and has a first end 11 and a second end 12 on opposite sides. In this embodiment, the shield 1 is composed of a top wall 13 and a front wall 14 extending downward from the front side of the top wall 13, and the first end 11 and the second end 12 are respectively formed on the top wall. The wall 13 and the front wall 14 have opposite side edges. The lifting control module 2 is connected to the first end 11, the rotation support module 3 is connected to the second end 12, the shaft 4 is used for winding a curtain 9 and both ends are respectively connected to the lifting control module 2 and the rotating support module 3 to be controlled by the lifting control module 2 to rotate and lift the curtain 9. The curtain 9 applicable to this embodiment can be a cloth curtain, a Roman curtain, a zebra curtain, and the like.

4 and 5, the shaft 4 is in the shape of a hollow cylinder and is formed with an engaging portion 41 recessed from its outer peripheral surface and protruding from its inner peripheral surface. The engaging portion 41 extends linearly to two of the shaft 4 The end also defines a groove 42 recessed from the outer peripheral surface of the shaft 4. The groove 42 is used to fix the curtain 9 (see FIG. 1).

Referring to FIGS. 6 to 9, the lifting control module 2 includes a carrying unit 5, a rotating shaft wheel 6, a stopping unit 7 and a driving unit 8.

The carrying unit 5 includes a base wall 51 connected to the shield 1 (see FIG. 1) and a fixed shaft 52 fixed to the base wall 51. The base wall 51 has a flat portion 511, a positioning pin portion 512 vertically protruding from the flat portion 511, a supporting portion 513 vertically protruding from the flat portion 511 and located above the positioning pin portion 512, and two respectively located at The first lock holes 514 on the upper and lower sides of the positioning pin portion 512. The fixed shaft 52 has a shaft portion 521 and a guiding column 522 penetrating the shaft portion 521 in a radial direction. In this embodiment, the shaft portion 521 has a large-diameter section 521a that abuts against the flat-plate portion 511 and a large-diameter section 521a that extends coaxially from the large-diameter section 521a in a direction perpendicular to the flat-plate portion 511 and has a diameter smaller than that of the large-diameter section 521a. The small diameter section 521b. The fixed shaft 52 also has a socket 523 extending from the large-diameter section 521a concavely along the axis to insert the positioning pin portion 512, and two holes 523 located on the upper and lower sides of the socket 523 and passing through the large-diameter section. The second locking hole 524 of 521a, a pair of elastic hooks 525 protruding from the end of the small diameter section 521b in the axial direction, and a fixed protruding radially from the small diameter section 521b close to the large diameter section 521a Block 526. The guide post 522 penetrates the small diameter section 521b. The second lock holes 524 correspond to the first lock holes 514, respectively, and are used to pass through a screw lock piece (not shown) or a hot pressing riveting piece to fix the fixing shaft 52 to the flat plate portion 511 .

The shaft wheel 6 is rotatably sleeved on the shaft portion 521 around the shaft portion 521, and includes a main body 61 for connecting and fixing the shaft 4 (see FIG. 4) and a main body 61 connected to the main body 61 close to the base wall 51 A convex ring body 62 on one side and radially expanded outward from the main body 61. The main body 61 has an accommodating groove 611 surrounding the shaft portion 521, and a first ratchet portion 612 distributed around the shaft portion 521 is formed on a wall surface defining the accommodating groove 611 and facing the base wall 51. The convex ring The surface of the body 62 facing the base wall 51 is formed with a second ratchet portion 621 distributed around the accommodating groove 611. The rotating shaft wheel 6 is blocked by the elastic hooks 525 to prevent the rotating shaft wheel 6 from falling out of the fixed shaft 52. The main body 61 of the rotating shaft wheel 6 is provided with one end of the shaft 4 to be sleeved, and also has a first slot 613 for engaging the engaging portion 41 (see FIG. 4). In this way, the rotating shaft wheel 6 can link the shaft 4.

Referring to Figures 7, 8, 10 and 11, the anti-return unit 7 includes a set of anti-return wheels 71 arranged on the shaft portion 521 and accommodated in the accommodating groove 611 and a set of anti-return wheels 71 arranged in the anti-return wheel 71 The restoring piece 72 between and the rotating shaft wheel 6. The anti-return wheel 71 has a wheel body 711 and a third ratchet tooth portion 712 formed on a surface of the wheel body 711 facing the first ratchet tooth portion 612 and matched with the first ratchet tooth portion 612. The anti-return wheel 71 can be at a stop position (see FIG. 16) at which the third ratchet portion 712 meshes with the first ratchet portion 612 relative to the shaft portion 521 and a position where the third ratchet portion 612 meshes. 712 moves between the release position (see FIG. 20) where the first ratchet portion 612 is separated. The restoring member 72 restores the non-returning wheel 71 to the non-returning position. In this embodiment, the anti-return wheel 71 also has a guide groove 713 formed in the wheel body 711 and matched with the guide post 522, so that when the anti-return wheel 71 rotates, a cam action is formed and the anti-return wheel 71 Move between the position and the release position. The restoring member 72 is an elastic ring (O-ring) embedded in the outer circumference of the wheel body 711, and can generate friction with the inner surface of the rotating shaft wheel 6 to provide the restoring force of the anti-return wheel 71 . In a modified embodiment, the restoring member 72 may be a spring sleeved on the shaft portion 521 and located between the check wheel 71 and the driving wheel 81 of the driving unit 8, so as to provide the spring through the elastic deformation of the spring. The restoring force of the backstop wheel 71 reset.

7-9 again, the driving unit 8 includes the driving wheel 81, a linkage member 82, a pushing member 83, a blocking member 84, a pull cord 85, a retractable elastic member 86 and an annular elastic Piece 87.

The driving wheel 81 is rotatably sleeved on the shaft portion 521 and has a fourth ratchet portion 811 that cooperates with the second ratchet portion 621 and can be driven at a driving position along the shaft portion 521 (see FIG. 25) and a normal position (see Figure 16). In the driving position, the fourth ratchet portion 811 is engaged with the second ratchet portion 621; in the normal position, the fourth ratchet portion 811 is separated from the second ratchet portion 621. The linkage 82 connects the driving wheel 81 and the anti-return wheel 71 to move the anti-return wheel 71 to the release position. The pushing member 83 is disposed on the base wall 51 and can move between an initial position (see FIG. 16) and a pushing position (see FIG. 25). The pushing member 83 does not interact with the driving wheel 81 in the initial position; when the pushing member 83 is in the pushing position, the driving wheel 81 is pushed against the driving wheel 81 so that the driving wheel 81 is located at the driving position. The blocking member 84 is provided on the base wall 51 and is capable of a blocking position (see FIG. 17) that enables the pushing member 83 to be positioned at the initial position, and an avoiding position that enables the pushing member 83 to move to the pushing position Move between positions (see Figure 24). One end of the pull rope 85 is fixed to the driving wheel 81 and loops around the driving wheel 81 for several times, and then passes through the pushing member 83 and the blocking member 84 so that the end can be pulled by the user. The retracting elastic member 86 provides the restoring force of the rotation reset of the driving wheel 81 to automatically retract the pull cord 85. The annular elastic member 87 is sandwiched between the rotating shaft wheel 6 and the driving wheel 81 to provide a restoring force for the driving wheel 81 to return to the normal position.

In this embodiment, the driving wheel 81 is composed of a first wheel 812 and a second wheel 813. The first wheel 812 has a ring plate portion 812a, and a ring plate portion 812a facing the A ring wall portion 812b protruding from the second wheel member 813, a plurality of coupling posts 812c protruding from the ring wall portion 812b toward the second wheel member 813, and a ring plate portion 812a formed opposite to the ring wall portion Ring groove portion 812d on one side of 812b. The fourth ratchet portion 811 is formed on the ring plate portion 812a and surrounds the ring groove portion 812d. The second wheel 813 has a plurality of coupling holes 813a corresponding to the coupling posts 812c for clamping. The first wheel 812 and the second wheel 813 are combined and fixed by the coupling posts 812c and the coupling holes 813a, and the ring plate portion 812a, the ring wall portion 812b and the second wheel 813 jointly form a container. The space for retracting the elastic member 86 is provided, and the outer circumference of the ring wall portion 812 b is used for winding the draw rope 85 and restricts the draw rope 85 between the ring plate portion 812 a and the second wheel 813. The ring wall portion 812 b has a notch 8121 through which the pull cord 85 passes and a fixing groove 8122 for fixing one end of the retractable elastic member 86. One end of the pull cord 85 is fixed to the inner side of the ring wall portion 812b with a knot. The retracting elastic member 86 is a coil spring located on the ring wall portion 812b and sleeved on the shaft portion 521, and the inner end of the retracting elastic member 86 is fixed to the fixing block 526 of the fixing shaft 52, and The outer end is fixed to the fixing groove 8122 of the ring wall portion 812b, so as to provide a restoring force for the driving wheel 81 to rotate and reset. While the driving wheel 81 is rotating and resetting, the draw cord 85 is also retracted at the same time.

In this embodiment, the link 82 is a thread, such as a string or a thread. The two ends of the linkage member 82 are respectively fixed to the wheel body 711 of the anti-return wheel 71 and the driving wheel 81, and the middle part surrounds the shaft portion 521. When the pull rope 85 is pulled to the bottom, the driving wheel 81 links the The linkage member 82 causes the linkage member 82 to be tightened and moves the anti-return wheel 71 to the release position. Specifically, the wheel body 711 has a rope groove 714 (see FIG. 10), and the ring plate portion 812a is also provided with a rope hole 8123 for the link 82 to pass through. The two ends of the link 82 are respectively knotted. It is fixed to the cord groove 714 and the inner side of the ring plate portion 812a. The middle part of the link 82 surrounds the shaft portion 521 and is received in the ring groove portion 812d. When the linkage member 82 is not linked by the driving wheel 81, it surrounds the shaft portion 521 in a relaxed state, and can be driven by the driving wheel 81 to be completely tightened when the pull rope 85 is pulled to the bottom. , So that the anti-return wheel 71 can be driven by the linkage 82 to move to the release position. When the linking member 82 returns to a relaxed state, the anti-return wheel 71 is returned to the anti-return position by the action of the reset member 72.

In this embodiment, the pushing member 83 is pivoted on the supporting portion 513 and has a pull-down portion 831 located above the driving wheel 81 and for the pull cord 85 to pass through, and a pull-down portion 831 located opposite to the driving wheel 81 One side of the fourth ratchet portion 811 is used to push the pushing portion 832 of the driving wheel 81. When the pull-down portion 831 is not affected by the pull cord 85, the pusher 83 is located at the initial position. When the pull-down portion 831 is pulled down by the pull cord 85, it pivots downward to move the pushing member 83 to the pushing position.

In this embodiment, the blocking member 84 is pivoted on the flat plate portion 511, and has an upright pivoting portion 841, a blocking portion 842 bent from the upper end of the pivoting portion 841 and extending vertically, and a pivoting portion 842 extending vertically from the pivoting portion 841. The lower end of the connecting portion 841 is bent and extended, and a pulling portion 843 for the pull cord 85 to pass through. The blocking portion 842 and the pulling portion 843 are vertically misaligned and rotate in the opposite direction relative to the pivoting portion 841. When the pulling portion 843 is pivoted outward under the action of the pull cord 85, the blocking portion 842 approaches the pushing member 83 and The pushing member 83 is prevented from pivoting downward. Specifically, the pushing portion 832 of the pushing member 83 is stepped close to the side edge 833 of the blocking portion 842, and the lower half of the side edge 833 is retracted inward for the side edge of the blocking portion 842 to abut to limit the blocking portion 842. The portion 842 rotates counterclockwise in the direction shown in FIG. 7, and the upper half of the side edge 833 is used to abut against the upper surface of the blocking portion 842.

Referring to FIGS. 5 and 12 to 14, the rotation support module 3 includes a mounting wall 31 connected to the shield 1 (see FIG. 1), and a mounting wall 31 fixed to the mounting wall 31 and extending toward the lifting control module 2. The supporting shaft 32 and a rotating seat 33 rotatably sleeved on the supporting shaft 32. The mounting wall 31 is provided with a fixing post 311 for the supporting shaft 32 to be sleeved and fixed. The rotating seat 33 has a connecting portion 331 for the other end of the shaft 4 to be sleeved, and the connecting portion 331 has a second slot 331a for engaging the engaging portion 41 so that the rotating seat 33 and the The shaft 4 is linked.

In this embodiment, the rotation support module 3 further includes a reduction sleeve 34 and a crimping member 35. The rotating base 33 also has an extension portion 332 having a diameter smaller than the connecting portion 331, extending from the connecting portion 331 toward the lifting control module 2 and surrounding the supporting shaft 32 at intervals. The supporting shaft 32 has a shaft 321 and a friction ring 322. The shaft 321 has a fixed end 321 a connected to the mounting wall 31 and a free end 321 b opposite to the fixed end 321 a and extending out of the rotating seat 33. The friction ring 322 is embedded in the free end 321 b. Specifically, the friction ring 322 is an elastic ring (O-ring) for generating frictional resistance with the reduction sleeve 34. In this embodiment, the supporting shaft 32 is provided with two friction rings 322, and the number of the friction rings 322 can be adjusted according to the required friction resistance.

The reduction sleeve 34 has a cylindrical portion 341 set on the free end portion 321b and a plurality of elastic pieces 342 extending from the cylindrical portion 341 toward the rotating seat 33, and the elastic pieces 342 surround the shaft The bodies 321 are distributed and the ends are located between the extension portion 332 and the shaft body 321. The crimping member 35 is linear and wound around the reduction sleeve, and two ends are respectively fixed to the rotating seat 33 and the cylindrical portion 341. Specifically, the rotating seat 33 further forms a first wire groove 331b at the second slot 331a of the connecting portion 331 to fix one end of the crimping member 35, and the reduction sleeve 34 is attached to the cylinder portion 341 A second wire slot 343 is provided to fix the other end of the crimping member 35. In this embodiment, the crimping member 35 is a compression spring, but in a modified embodiment, the crimping member 35 can also be replaced by a string or wire.

In the direction shown in Fig. 1, when the shaft 4 rotates forward, the curtain 9 can be raised. The rotation direction of the shaft 4 is defined as forward rotation. When the shaft 4 rotates backward, the curtain 9 can be made When descending, the direction of rotation of the shaft 4 is defined as reverse. When the shaft 4 is reversed, the reduction sleeve 34 is subjected to the resistance of the friction ring 322 compared with the rotating seat 33, which causes the crimping member 35 to shrink and compress the elastic sheets 342 to clamp the shaft. 321 further decelerates the rotating seat 33, so that the shaft 4 can be decelerated and the curtain 9 can be lowered slowly. When the curtain 9 is lowered, the shaft 4 is rotated forward by the lifting control module 2 to raise the curtain 9, the crimping member 35 can return to the original position to make the elastic sheets 342 more slack Surrounding the shaft 321. Thereby, when the shaft 4 rotates forward, the torque generated by the rotation support module 3 is relatively small, so as to facilitate the user to operate the pull rope 85 of the lifting control module 2 to raise the curtain 9 with less effort; When the shaft 4 is reversed, the torsion force generated by the rotation support module 3 is relatively large, so that the curtain 9 can be lowered slowly.

The operation mode of the lifting control module 2 will be described in detail below.

Referring to Figure 1, Figure 7, Figure 15 and Figure 16, when the curtain 9 is in the stowed state and not in use, the drawstring 85 of the lift control module 2 is wound on the driving wheel 81, and the anti-return wheel 71 At the stopping position, the first ratchet part 612 and the third ratchet part 712 cooperate to make the rotating shaft wheel 6 only rotate forward in one direction (driving the shaft 4 to rotate forward) but not reverse. Rotation, so that the shaft 4 can be maintained so that the curtain 9 will not drop. At this time, the pushing member 83 is located at the initial position and the driving wheel 81 is located at the normal position.

Referring to Figures 7, 17 and 18, when the user pulls the pull rope 85 outward (the direction away from the driving wheel 81) diagonally, the pulling portion 843 of the blocking member 84 can be pivoted outward and the blocking portion 842 leans against the pushing member 83, so that the pushing member 83 is positioned at the initial position, even if the blocking member 84 moves to the blocking position. Since the pushing member 83 is positioned at the initial position, and the driving wheel 81 is in the normal position and cannot be linked to the rotating shaft wheel 6, the user pulling the rope 85 can only rotate the driving wheel 81, but not If the rotating shaft wheel 6 is rotated, the shaft 4 will not be linked. When the driving wheel 81 rotates, the linkage member 82 is linked to tightly wrap the shaft portion 521, and the stop wheel 71 is linked to move to the release position. Referring to FIGS. 19-21, when the pull cord 85 is pulled to the bottom, the anti-return wheel 71 moves to the release position. At this time, the rotating shaft wheel 6 is free to rotate without being affected by the anti-return wheel 71, and the curtain 9 on the shaft 4 descends under the action of gravity. In order to prevent the curtain 9 from falling too fast and hitting people or objects below, the rotating base 33 can be decelerated by the aforementioned deceleration mechanism of the rotating support module 3, and the rotating base 33 is linked to the shaft 4 to decelerate , Thereby slowing down the descending speed of the curtain 9. Referring to Figures 22 and 23, if the curtain 9 is not completely lowered, the pull cord 85 can be released when the curtain 9 is lowered to an appropriate height. After the pull cord 85 is released, the driving wheel 81 can be rolled The retracting elastic member 86 drives the reverse rotation to retract the pull rope 85, and at the same time releases the linkage member 82 (see FIG. 7), so that the anti-return wheel 71 returns to the anti-retraction position, so that the rotating shaft wheel 6 Stop turning and position the curtain 9. Of course, if the pull cord 85 is released after the curtain 9 is completely lowered, the same effect can be produced, and the anti-return wheel 71 can be returned to the anti-return position. In other words, as long as the pull cord 85 is not pulled to the end, the anti-return wheel 71 will remain at the anti-return position.

Referring to FIGS. 24 to 26, when the curtain 9 is to be pulled up, the user pulls the rope 85 directly downwards, so that the blocking member 84 is located at the avoiding position and the pushing member 83 is moved to the pushing Position to push the driving wheel 81 to the driving position. When the driving wheel 81 is at the driving position, the fourth ratchet part 811 cooperates with the second ratchet part 621, so that the driving wheel 81 drives the rotating shaft wheel 6 to rotate the shaft 4 forward. , So that the shaft 4 retracts the curtain 9 and raises the curtain 9. When the pull cord 85 is released, referring to FIG. 16, the driving wheel 81 is returned to the normal position by the annular elastic member 87, and the pushing member 83 returns to the initial position, and the pull cord 85 is rotated by the driving wheel. The wheel 81 is retracted, and similarly, the rotating shaft wheel 6 is acted by the anti-return wheel 71 and will not be rotated and reversed by the shaft 4, so that the curtain 9 is kept in a proper position. If the ascending stroke of the curtain 9 is relatively long, the aforementioned action of directly pulling the rope 85 downwards and then releasing the rope 85 can be repeated, so that the curtain 9 can rise a larger distance.

As can be seen from the foregoing description, when the drawstring 85 is not pulled by the user, it remains rolled on the driving wheel 81, which can avoid the danger of entanglement with young children and the inconvenience of entanglement with nearby objects. Moreover, the user only needs to pull the pull cord 85 to raise and lower the curtain 9, which is simple and convenient to operate.

Referring to FIGS. 27 to 29, a second embodiment of a roller blind lifting device 100 of the present invention is substantially the same as the first embodiment. The difference is that in the second embodiment, the driving unit 8 of the lifting control module 2 The annular elastic member 87 is not provided, and the pushing member 83 forms an elastic branch 834 located above the pull-down portion 831 and extending in a direction away from the flat portion 511. The end of the elastic branch 834 abuts against the top wall 13 of the shield 1 (see FIG. 2), and can generate a reaction force when the abutting member 83 pivots from the initial position to the driving position, so that the abutting When the member 83 is not under the action of the pull cord 85, it returns from the driving position to the initial position.

Referring to FIGS. 30 to 32, a third embodiment of the roller blind lifting device 100 of the present invention is substantially the same as the first embodiment. The difference is that in the third embodiment, the pushing portion 832 of the pushing member 83 A recess 835 is formed corresponding to the blocking portion 842. As shown in FIG. 31, the user pulls the pull cord 85 directly downwards, which can make the pulling portion 843 of the blocking member 84 slightly pivot inward and the blocking portion 842 to pivot outward to abut against the push member 83 Below the side edge 833, even if the blocking member 84 moves to the blocking position, the pushing member 83 is positioned at the initial position. As shown in FIG. 32, when the user pulls the pull rope 85 outward (the direction away from the driving wheel 81) diagonally, the pulling portion 843 of the blocking member 84 can be slightly pivoted outward and the blocking portion 842 can be moved toward It pivots inwardly and is located below the recess 835 of the pushing member 83, even if the blocking member 84 is in the avoiding position and the pushing member 83 is moved to the pushing position, so as to push the driving wheel 81 To the driving position. In other words, in the third embodiment, by using the recess 835 of the pushing member 83 to allow the user to operate the pull cord 85 to control the blocking member 84 in the blocking position and the avoiding position, the actions are reversed. In the first embodiment, pulling the rope 85 obliquely outwards makes the blocking member 84 in the blocking position, and pulling the rope 85 directly downward makes the blocking member 84 in the avoiding position; while in the third embodiment, the rope Pulling 85 obliquely outwards makes the blocking member 84 be in the avoiding position, and pulling the rope 85 directly downward makes the blocking member 84 be in the blocking position.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

100: Roller blind lifting device 1: mask 11: first end 12: second end 13: top wall 14: front wall 2: Lifting control module 3: Rotating support module 31: Install the wall 311: fixed column 32: Support shaft 321: Shaft 321a: fixed end 321b: free end 322: Friction Ring 33: Rotating seat 331: Connection 331a: second card slot 331b: the first trunking 332: Extension 34: Reduction sleeve 341: Cylinder 342: elastic sheet body 343: second trunking 35: crimped parts 4: shaft 41: Snap part 42: groove 5: Carrying unit 51: basal wall 511: Flat part 512: Locating pin 513: Support 514: first keyhole 52: fixed shaft 521: Shaft 521a: Large diameter section 521b: Trail section 522: Guiding Column 523: Jack 524: second keyhole 525: Flexible hook 526: fixed block 6: Rotating shaft wheel 61: main body 611: Containment Slot 612: first ratchet 613: first card slot 62: convex ring body 621: second ratchet 7: stop unit 71: stop wheel 711: Wheel Center 712: Third Ratchet 713: guide groove 714: Thread Groove 72: reset piece 8: drive unit 81: drive wheel 811: fourth ratchet 812: first round 812a: Ring plate part 812b: Ring wall 8121: gap 8122: fixed slot 8123: rope hole 812c: binding column 812d: Ring groove 813: second round 813a: Combination hole 82: Linkage 83: push piece 831: pull-down part 832: Arrival 833: side edge 834: Elastic Branch 835: give way notch 84: Block 841: Pivot 842: block 843: Pull Department 85: Drawstring 86: Rewinding elastic parts 87: Ring elastic 9: Curtain

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view of the first embodiment of the roller blind lifting device of the present invention with a curtain installed; Figure 2 is a perspective exploded view of the first embodiment; Figure 3 is another perspective exploded view of Figure 2; Figure 4 is a perspective exploded view of the first embodiment, in which a mask is not shown; Fig. 5 is another perspective exploded view of Fig. 4; Figure 6 is a perspective view of the lift control module of the first embodiment; Figure 7 is a three-dimensional exploded view of the lifting control module; Figure 8 is a further three-dimensional exploded view of the lifting control module; Fig. 9 is another perspective exploded view of Fig. 8; Figure 10 is a perspective view of a backstop wheel of the lift control module; Figure 11 is a cross-sectional view of the anti-return wheel; Figure 12 is a perspective view of the rotation support module of the first embodiment; Figure 13 is a three-dimensional exploded view of the rotation support module; Figure 14 is another perspective exploded view of Figure 13; Figure 15 is a side view of the lifting control module when it is not being operated; Figure 16 is a front view corresponding to Figure 15; FIG. 17 is a side view of the lifting control module when it is operated to lower the curtain, and one of the blocking members is located at the blocking position; Figure 18 is a front view corresponding to Figure 17; Fig. 19 is a continuous view of Fig. 17, illustrating the state where the lifting control module is operated to pull the rope to the bottom; Figure 20 is a front view corresponding to Figure 19, illustrating that the anti-return wheel is in the released position; FIG. 21 is a perspective view corresponding to the state of the lifting control module in FIG. 19 to lower the curtain; Figure 22 is a continuous view of Figure 19, illustrating the state of the lift control module when the pull cord is released; Figure 23 is a front view corresponding to Figure 22, illustrating that the anti-return wheel returns to the anti-return position; Fig. 24 is a side view of the lifting control module being operated to raise the curtain, wherein the blocking member is located in the avoiding position; FIG. 25 is a front view corresponding to FIG. 24, illustrating that a pushing member is in the pushing position and a driving wheel is in the driving position; FIG. 26 is a perspective view corresponding to the state of the lifting control module in FIG. 25 to raise the curtain; 27 is a perspective view of the lifting control module of the second embodiment of the roller blind lifting device of the present invention; Figure 28 is a side view of the lift control module of the second embodiment; Figure 29 is a front view of the lift control module of the second embodiment; 30 is a perspective view of the lifting control module of the third embodiment of the roller blind lifting device of the present invention; FIG. 31 is a side view of the lifting control module of the third embodiment being operated to position the blocking member at the blocking position; and Fig. 32 is a side view of the elevator control module of the third embodiment being operated so that the blocking member is in the avoiding position.

2: Lifting control module

5: Carrying unit

51: basal wall

513: Support

52: fixed shaft

521: Shaft

522: Guiding Column

525: Flexible hook

6: Rotating shaft wheel

61: main body

611: Containment Slot

612: first ratchet

62: convex ring body

621: second ratchet

7: stop unit

71: stop wheel

712: Third Ratchet

72: reset piece

8: drive unit

81: drive wheel

811: fourth ratchet

82: Linkage

83: push piece

831: pull-down part

832: Arrival

833: side edge

84: stop

841: Pivot

842: block

843: Pull Department

85: Drawstring

87: Ring elastic

Claims (11)

A lift control module is used to connect a shaft to control the rotation of the shaft, and the lift control module includes: A bearing unit, including a base wall and a fixed shaft fixed to the base wall, the fixed shaft having a shaft portion; A rotating shaft wheel is rotatably sleeved on the shaft portion around the shaft portion, and includes a main body for connecting and fixing the shaft rod and a side connected to the main body close to the base wall and radially outward from the main body An expanded convex ring body, the main body has an accommodating groove surrounding the shaft portion, and a first ratchet portion surrounding the shaft portion is formed on a wall surface defining the accommodating groove and facing the base wall, the convex ring body A surface facing the base wall is formed with a second ratchet portion distributed around the accommodating groove; A stopping unit includes a set of stopping wheels arranged on the shaft portion and accommodating in the accommodating groove and a restoring piece. The stopping wheel has a wheel body and a wheel body formed on the wheel body facing the first ratchet The surface of the part and the third ratchet part matched with the first ratchet part, the anti-return wheel can be positioned relative to the shaft part at a stop that enables the third ratchet part to mesh with the first ratchet part. Moving between a retracted position and a release position that separates the third ratchet part from the first ratchet part, the resetting member returns the non-returning wheel to the non-returning position, and the non-returning wheel is located at the non-returning position When in position, the shaft wheel can only rotate forward in one direction; and A driving unit includes a driving wheel, a linkage member, a pushing member, a blocking member, a pull rope, and a retractable elastic member. The driving wheel is rotatably sleeved on the shaft and has a and The fourth ratchet part matched with the second ratchet part can move along the shaft between a driving position and a normal position. In the driving position, the fourth ratchet part and the second The ratchet teeth mesh with each other. In the normal position, the fourth ratchet teeth are separated from the second ratchet teeth. The linkage connects the driving wheel and the anti-return wheel to move the anti-return wheel To the release position, the pushing member is arranged on the base wall and can move between an initial position and a pushing position, the pushing member does not interact with the driving wheel when in the initial position, the pushing member When in the abutting position, the driving wheel is pushed so that the driving wheel is located at the driving position, the blocking member is arranged on the base wall and can move between a blocking position and an avoiding position, and the blocking member is in the In the blocking position, the pushing member is positioned at the initial position, when the blocking member is in the avoiding position, the pushing member can be moved to the pushing position, and one end of the pull rope is fixed to the driving wheel and surrounds the After several turns of the driving wheel, pass through the pushing member and the blocking member so that the end can be pulled by the user. The retracting elastic member provides a restoring force for the rotation of the driving wheel to automatically retract the pull rope. The lifting control module according to claim 1, wherein the fixed shaft member further has a guide post piercing through the shaft portion in a radial direction, and the anti-return wheel further has a guide post formed in the wheel body and matched with the guide post. The guide groove of the guide post forms a cam action when the anti-return wheel rotates to move between the anti-retraction position and the release position. The elevator control module according to claim 2, wherein the linkage member is a linear shape, two ends of the linkage member are respectively fixed to the wheel body of the anti-return wheel and the driving wheel, and the middle part surrounds the shaft portion, When the pull rope is pulled to the bottom, the driving wheel is linked to the linkage to make the linkage to be tightened and linked to the backstop wheel to move to the release position. The lifting control module according to claim 1, wherein the base wall has a flat plate portion perpendicular to the shaft portion and a support portion protruding from the flat plate portion and located above the fixed shaft, and the pushing member is pivoted on The support portion has a pull-down portion located above the driving wheel and for the pull cord to pass through, and a side of the driving wheel opposite to the fourth ratchet portion to push the driving wheel When the pull-down portion is not under the action of the pull rope, the pushing member is located at the initial position, and when the pull-down portion is pulled down by the pull rope, the pushing member pivots downward to move the pushing member to the pushing position. The lifting control module according to claim 4, wherein the blocking member is pivoted on the flat plate portion, and has an upright pivoting portion, a blocking portion bent and extending vertically from the upper end of the pivoting portion, and a self-propelled The lower end of the pivotal portion is bent and extended and the pull cord is passed through the pulling portion, and the blocking portion is vertically offset from the pulling portion and rotates in the opposite direction relative to the pivotal portion. The lifting control module according to claim 5, wherein the pushing portion of the pushing member is stepped near the side edge of the blocking portion, the pull rope is pulled obliquely outward so that the blocking member is located at the blocking position, The pull rope is directly pulled downward to make the blocking member located at the avoiding position. According to claim 5, the lifting control module, wherein the pushing portion of the pushing member forms a recess in corresponding to the blocking portion, and the pull rope is directly pulled downward so that the blocking member is located at the blocking position, and The pull rope is pulled obliquely outward so that the blocking member is located at the avoiding position. The lifting control module according to claim 4, wherein the driving unit further includes an annular elastic member sandwiched between the rotating shaft wheel and the driving wheel to provide a return of the driving wheel to the normal position force. A roller blind lifting device, including: A mask extending along a straight line and having a first end and a second end on opposite sides; An elevator control module according to any one of claims 1 to 8, wherein the base wall of the carrying unit is connected to the first end and the shaft portion faces the second end; A rotating support module connected to the second end; and A shaft is used for winding a curtain, and both ends are respectively connected with the lifting control module and the rotation support module, so as to be controlled by the lifting control module to rotate and lift the curtain. The roller blind lifting device according to claim 9, wherein the shaft is in the shape of a hollow cylinder and is formed with an engaging portion recessed from its outer peripheral surface and protruding from its inner peripheral surface, and the engaging portion extends linearly to the shaft The two ends of the rod define a groove recessed from the outer peripheral surface of the shaft. The main body of the rotating shaft wheel is sleeved on one end of the shaft and has a first groove for engaging and clamping the engaging part. The rotating support module includes a mounting wall connected to the shield, a support shaft fixed to the mounting wall and extending toward the lifting control module, and a rotating seat rotatably sleeved on the support shaft. The seat has a connecting portion for socketing the other end of the shaft, and the connecting portion has a second slot for engaging and clamping the engaging portion. According to claim 10, the roller blind lifting device, wherein the rotation support module further includes a reduction sleeve and a crimping member, and the rotation seat further has a diameter smaller than the connecting portion, from the connecting portion toward the lifting control The module extends and surrounds the extension part of the support shaft at intervals. The support shaft has a shaft body and a friction ring. The shaft body has a fixed end connected to the mounting wall and a fixed end opposite to the fixed end and protrudes The free end of the rotating seat, the friction ring is embedded in the free end, the reduction sleeve has a cylindrical portion set on the free end and a plurality of extending from the cylindrical portion toward the rotating seat An elastic sheet body, the elastic sheets are distributed around the shaft body and the ends are located between the extension part and the shaft body, the crimping member is linear and wound on the reduction sleeve, and both ends are respectively fixed to the rotating seat And the barrel part, when the shaft is reversed, the reduction sleeve is subjected to the friction ring resistance, compared with the rotating seat, the speed is slower, so that the crimping member shrinks and compresses the elastic sheets to clamp the shaft body In turn, the rotating seat is decelerated.

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